BIOPHEN® CS-21(66) — specific chromogenic substrate for Activated Protein C (APC). Equivalent to Chromogenix S-2366. 1 × 25 mg lyophilized. Research use.

CS-21(66) is cleaved by activated Protein C and related serine proteases, releasing pNA at 405 nm. It is the core substrate for BIOPHEN™ Protein C chromogenic assay systems and APC activity research. Also shows reactivity with thrombin at higher concentrations.

• APC-specific H-D-Glu-Gly-Arg-pNA structure
• Equivalent to Chromogenix S-2366
• Core substrate for BIOPHEN™ Protein C assay systems
• 1 × 25 mg lyophilized